C-7

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#C-7

Description

C-7 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: C-7

Category	Type	Steel Grade
Steel Grades	Tool Steel	C-7
		C-1
		C-2
		C-3
		C-4
		C-5
		C-50
		C-5A
		C-6
		C-60
		C-6A

Chemical composition(mass fraction)(wt.%) of the C-7

C ≤	Si ≤	Mn ≤	P ≤	S ≤	Cr	Ni

Mo	Al	WC	TaC (NbC)	TiC	V	Ce
		71.0-83.0	3.0-12.0	4.4-13.0
N	Co	Pb	B	Other
	4.0-7.2

Mechanical Properties of steel grade C-7

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
254 (≥)	544 (≥)	13	43	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	212

Physical Properties of steel grade C-7

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
13	-	-			0.24	-
254	283	-	21.3	213		-
218	-	32	31.2			312	343

Heat Treatment of steel grade C-7

Heat treated : 1521°C - 1658°C

Technological Curves of steel grade C-7

No Curve

Cross Reference Table (Equivalent Grade) of C-7

Grade	Standard	Country	Application
C-7	AISI	USA	Machining with carbide
C-7A	AISI	USA	Machining with carbide
C-75			Structural steel

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Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

Rfq.: sales@longhaisteel.com

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C-7